| Brand Name: | GOOLE |
|---|---|
| Model Number: | 900/A48/A48SB |
| Place of Origin: | China (Mainland) |
| Port Size: | DN15-400 |
| Media: | water,gas,steam,air... |
| Temperature of Media: | normal,high |
| Material: | stainless steel,cast steel,iron,WCB,bronze,copper |
| Power: | Manual |
| Pressure: | normal,high |
| Structure: | Safety |
| Standard or Nonstandard: | Standard |
Quick Details
Specifications
900 Series DIN standard Safety Valve are mainly applied to the industries such as petroleum & Natural gas, Chemistry, Electric, Metallurgy & Burning gas. DIN safety valve, pressure safety valve, safety relief valve.
900 DIN Spring loaded Pressure Safety Valve
DIN Standard Safety Valve Features:
Safety valves were first used on steam boilers during the industrial revolution. Early boilers without them were prone to accidental Explosion.
Safety valves also evolved to protect equipment such as pressure vessel (fired or not) and heat exchangers. Safety valve term should be limited to compressible fluid application (gas, vapor, steam).
The two general types of protection encountered in industry are thermal protection and flow protection.
For liquid-packed vessels, thermal relief valves are generally characterized by the relatively small size of the safety valve necessary to provide protection from excess pressure caused by thermal expansion. In this case a small valve is adequate because most liquids are nearly incompressible, and so a relatively small amount of fluid discharged through the relief valve will produce a substantial reduction in pressure.
DIN Standard Safety Valve Specification
|
Type |
Nominal Pressure |
Body Material |
Nominal Diameter |
Working Temp. |
|
901/902/911/912 |
PN40/16 |
1.0619+N |
DN20/32-DN150/250 |
-10C～450C |
|
901/911 |
PN40/16 |
1.4408 |
DN20/32-DN100/150 |
-60C～400C |
A48 Type Spring Loaded Full Lift Safety Valve is applicable as the pressure protecting device in the equipment or pipelines for steam, air,etc., which the working medium is ≤350℃.
A48 Type Spring Loaded Full Lift Safety Valve Dimensions
|
DN |
do |
DN′ |
L |
L1 |
≈H |
|
20 |
15 |
25 |
110 |
95 |
306 |
|
25 |
16 |
32 |
110 |
95 |
306 |
|
32 |
20 |
40 |
115 |
100 |
309 |
|
40 |
25 |
50 |
120 |
110 |
323 |
|
50 |
32 |
65 |
135 |
120 |
333 |
|
65 |
40 |
80 |
160 |
140 |
420 |
|
80 |
50 |
100 |
170 |
135 |
432 |
|
100 |
65 |
125 |
205 |
160 |
553 |
|
125 |
80 |
150 |
210 |
190 |
639 |
|
150 |
100 |
175 |
255 |
230 |
654 |
|
200 |
125 |
250 |
305 |
260 |
797 |
|
250 |
150 |
300 |
350 |
320 |
998 |
|
300 |
220 |
400 |
370 |
350 |
1246 |
|
350 |
250 |
500 |
500 |
450 |
1711 |
|
400 |
280 |
500 |
500 |
450 |
1780 |
- A48SB High temperature and high pressure safety valve
-
These are used as Extra Pressure Protection Device for the equipment and pipeline of the steam, ect. The working temperature with Carbon Material Type are less than 425℃ and with WC6 Material type are less than 500℃ and WC9 Material Type are less than 550℃.
A48SB High Temperature and High Pressure Safety Valve Material
NO
Parts
Cast Steell Material
WC6 Material
WC9 Material
1
Body
WCB
ZG1Cr5Mo
ZG15Cr1MoV
2
Seat
2Cr13
1Cr18Ni9Ti
12Cr1MoVA
3
Adjusting Ring
2Cr13
1Cr18Ni9Ti
1Cr18Ni9Ti
4
Disc
2Cr13
17-4PH
17-4PH
5
Guiding Sleeve
2Cr13
1Cr18Ni9Ti
1Cr18Ni9Ti
6
Heat Radiator
ZG230-450
ZG230-450
ZG230-450
7
Bonnet
ZG230-450
ZG230-450
ZG230-450
8
Spring
50CrVA
50CrVA
50CrVA